User's Manual

8. Title
9. Initialize
The system response and output is slightly different for each module, as will be
explained.
From/to tap
(RF + Vac)
V
Power Pickoff
Power Supply
TX RX DX
DX
AR250
RX
AR105
Receive
Module
TX
AR150
Transmit
Module
RX & TX Antennas
AC
RF
Control RS485 >
Figure 4-1: Block Diagram AX1255 Access Point.
4.3 TX Command Line Interface
The commands unique to the TX Module are:
1. Downstream Air Frequency
2. Downstream Enable
These will be explained here.
4.3.1 TX Login
The LOG Login command is required to establish one-to-one communications with a
particular Module. Because this is a bussed system, one and only one Module can
be active at any one time. Prior to the complete Login command, no responses or
echo backs will occur. Once logged into one Module, one-to-one communications
can occur. It is only necessary to log into a Module once to establish
communications.
*LOG<nnmm>, where nn = mm = {01, 02, … 7F} is the hexadecimal address of the
Module within the ARCell
Transceiver/Antenna unit and is entered twice, i.e., nn and mm are identical.
ARCXtend manual, August 2003 4-2